baber/WOPTO huggingface dataset:
Patent CA-2289452-A1 (CA)
Title: Initial secret key establishment including facilities for verification of identity
Inventor: MOREAU THIERRY
IPC: H04L9/08
Filed: 1998-05-07
Abstract: An issuer offers any type of service secured with a secret cryptographic key assigned to an applicant according to the present invention, which includes a secret key registration process. Usually, the secret key will be loaded on a portable memory device or other secret key store of the applicant. As preliminary steps, the issuer sets up its public key for the Probabilistic Encryption Key Exchange (PEKE) cryptosystem, and the applicant obtains a copy of a secret key registration software, a copy of the issuer's public key, and a uninitialized portable memory device. Once initiated by the applicant, the registration software generates an internal PEKE secret key. The applicant chooses a registration pass query and pass reply that the registration software MACs and encrypts with a key derived from the PEKE secret key. The registration software derives the key assigned to the applicant from the PEKE secret key, and loads it into the secret key store. A message is sent to the issuer data processing center where the cryptographic processing (PEKE, MAC, encryption) is reversed.  Using an alternate channel (e.g. telephone conversation) an issuer agent verifies the identity of the applicant: the agent asks the pass query, the applicant replies with the pass reply, and the issuer verifies the applicant's knowledge of some relevant personal data. The issuer agent can approve the applicant's registration in the issuer database. There is no need for the issuer to personalize either the software or the secret key store before delivery to the applicant, and there is a single personal contact between the applicant and the issuer agent.
Patent CA-2291763-A1 (CA)
Inventor: BUSH WAYNE A
IPC: G01R27/26
Filed: 1998-05-08
Abstract: A fluid contamination analyzer (90) accepts data from a sensor array (94). The fluid is affected by a magnetic field stimulus (96) from a control driver (98). Alternatively, an electrostatic field exciter may be used. The sensors impedance as a function of field strength is an indication of the particles characteristics, when multiple sensors are separated by substantial distances, a system of communication links is used and the information is digested at a central location.
Patent CA-2296039-A1 (CA)
Title: Method for preparing polyorganosiloxanes (pos) with thiol functions, pos obtainable by this method and their use particularly in rubber materials
Inventor: BOMAL YVES
IPC: C08K3/36
Filed: 1998-07-10
Abstract: The invention concerns a method for preparing multifunctionalised polyorganosiloxanes (POS) comprising siloxyl units alkoxyl functional and siloxyl units each including a SH function, consisting in introducing the SH function by reacting H¿2?S on a precursor POS of formula: A-(RXSiO)¿a?-(RYSiO)¿b?-B in which R is in particular a C¿1?-C¿6? alkyl radical, X is a C¿1?-C¿15? alkoxyl radical, Y is an ethylenically unsaturated C¿2?-C¿30? hydrocarbon group from which is derived the SH functionality, a is a number from 1 to 150, b is a number from 1 to 150, the number a + b from 2 to 300 and A and B are terminal groups which are respectively selected in particular among the (R)¿3?SiO- radicals on their own or mixed with the (R)¿2?XSiO- and/or R(X)¿2?SiO- and/or (X)¿3?SiO- radicals and the -Si(R)¿3? radicals on their own or mixed with the -SiX(R)¿2? and/or Si(X)¿2?R, and/or -Si(X)¿3? radicals. The resulting multifunctionalised POS are used in particular as coupling agent for white-elastomer filler in natural or synthetic elastomer compositions comprising a white filler, in particular a siliceous substance, as reinforcing filler for manufacturing articles made in elastomer.
Patent CA-2297797-A1 (CA)
Title: Portable object with contactless communication through two communication channels, inductive and radio wave
Inventor: AMPELAS ANDRE
IPC: G07B15/02
Filed: 1999-06-15
Abstract: The invention concerns a portable object (10) to be used in a contactless secure automatic electronic transaction system comprising: means for setting up a first communication channel, by induction and short range, between the portable object and a terminal, with first transmitting means (26) and receiving means (26), co-operating with a tuned element (20) so as to pick up a modulated magnetic field coming from a terminal or to produce in response a modulated disturbance of said magnetic field; and means for setting up a second communication channel, long range, between the portable object and a receiver, said means comprising second transmission means (40) co-operating with an antenna (42) so as to radiate a modulated radio frequency wave. The second transmission means are capable of setting up a communication channel separate from the induction channel and of transmitting its own particular data to the remote receiver, and further means (26, 36 PWR) for selectively activating the second transmission means are provided.
Patent CA-2297863-A1 (CA)
Title: Method and apparatus for manufacturing pepperoni
Inventor: ROBERDS JAMES
IPC: A23L13/60
Filed: 2000-02-02
Abstract: A process for preparing diced or sliced sausage, e.g. pepperoni, includes the steps of preparing the meat mixture by grinding and mixing to specification. The sausage is stuffed into casings or is extruded into sheet form for fermentation and cooking, following which the cooled meat mixture is chilled to 35°F or lower and sliced or sliced and diced. The product is thereafter conveyed to a spiral dryer where it is exposed to relatively warm (about 50°F to 120°F) air at an initial relative humidity of 50% or less, preferably 30% or less, under turbulent air flow. The dried sausage is then conveyed to a chiller or freezer. Pepperoni prepared in this process has desirable flow characteristics when compared to product made using known pepperoni manufacturing processes. In the most preferred embodiment the conditioned air enters the lower portion of the spiral dryer along with the meat pieces and the resulting product is more consistent than if conventional top/down air flow was used in the dryer.
Patent CA-2298395-A1 (CA)
Title: Quick set variable scraper pressure coulter assembly
Inventor: BUTTERFIELD ROBERT
IPC: A01C5/06
Filed: 2000-02-14
Abstract: Disclosed is an agricultural implement and more particularly a coulter assembly for cutting a trench or furrow in the land for depositing seed and fertilizer therein. The coulter assembly may be used in conjunction with packers or other coulters, which cover the furrow with soil. The invention involves a scraper which is attached to a torque arm.      A torsion spring is attached to the torque arm to generate the scraping pressure against the coulter disk required to rid the disk of soil and debris. In order to make the scraper quickly adjustable for variable conditions, a slotted receiver is attached to a strut and is appropriately positioned to securely hold the end of the torsion spring at a desired position. The receiver is a slotted bracket. The slots are matched to the diameter of the spring wire.
Patent CA-2300639-A1 (CA)
Inventor: MESIROV JILL
IPC: G16B25/10
Filed: 2000-03-14
Abstract: The present invention relates to methods and apparatus for grouping or clustering gene expression patterns from a plurality of genes. The invention utilizes a Self Organizing Map to cluster the gene expression patterns into groups that exhibit similar patterns. The clustering enables one to easily analyze gene expression data from potentially thousands of genes.
Patent CA-2306874-A1 (CA)
Title: Dispositif d'implantation de grains radioactifs ou thermoactifs
Inventor: RYDELL MARK A
IPC: A61B18/14
Filed: 1998-06-09
Abstract: L'invention porte sur un instrument servant à implanter des grains radioactifs et/ou thermoactifs dans des tissus corporels à des fins de radio et/ou thermothérapie et comportant une tige tubulaire (18) d'aiguille hypodermique fixée à une poignée pistolet (12) qui présente une tige-poussoir (26) à mouvement alternatif permettant d'extraire un grain d'une cartouche (28) en contenant plusieurs, et de le faire avancer jusqu'à l'extrémité de l'aiguille. En pressant une détente placée dans la poignée pistolet, on provoque le retrait de l'aiguille par rapport à la tige-poussoir et le dépôt du grain dans le canal créé par la pénétration de l'aiguille dans le tissu corporel.
Patent CA-2307791-A1 (CA)
Inventor: LEE JAMES G N
IPC: G09G3/20
Filed: 2000-05-04
Abstract: The invention relates to a driving scheme for liquid crystal display of any order and dimension, comprising matrix building blocks possessing Orthogonal and Shift Orthogonality (SO) properties.      The driving scheme uses paraunitary matrices of the order Mx(N=1)M as the orthogonal building blocks.
Patent CA-2309269-A1 (CA)
Title: Process for producing spherical catalyst particles, catalyst particles and their use in a chemical synthesis
Inventor: DERLETH HELMUT
IPC: C07D301/12
Filed: 1998-10-31
Abstract: Process for producing spherical catalyst particles containing a zeolite as active element, according to which a sol containing zeolite crystals and at least one gel-forming compound is sprayed from below directly into a reaction zone containing a reaction gas such that the sol breaks up into individual sol beads immediately before or upon entry into the reaction zone, the sol beads flow through the reaction zone on a curved trajectory, in so doing are pre-consolidated and the sol beads are collected on a collecting means.
Patent CA-2312536-A1 (CA)
Title: System and method for selectively detaching point-to-point protocol header information
Inventor: KUMAR JIT
IPC: G06F13/00
Filed: 2000-06-27
Abstract: A system for, and method of, selectively detaching point-to-point protocol header information from a packet received from a network and a network adapter incorporating the system or the method. In one embodiment, the system includes: (1) a sub-protocol detector that receives the packet and identifies therefrom a sub-protocol employed with respect to the packet and (2) a header detacher, coupled to the sub-protocol detector, that detaches at least some of the point-to-point protocol header information from the packet based on an identity of the sub-protocol thereby to reduce an overall size of the packet.
Patent CA-2313309-A1 (CA)
Title: Harness for domestic animals
Inventor: FRANCO ANDREINO
IPC: A01K27/00
Filed: 2000-06-30
Abstract: The invention relates to a harness comprising a belly strap for surrounding the animal belly and a front strap for surrounding the front area of the neck, joined to one another by side connecting members, a lower connecting strap joining the belly strap with the front strap, and a symmetrical length-adjustment device comprising two upper straps connecting the side connecting members respectively to a first and a second portion of a releasable clip that can be located as desired along said upper straps.
Patent CA-2314333-A1 (CA)
Title: Computer modelling of fallen snow
Inventor: FEARING PAUL
IPC: G06T13/60
Filed: 2000-07-21
Abstract: One of nature's greatest beauties is the way fresh snow covers the world in a perfect blanket of crystalline white. Snow replaces sharp angles with gentle curves, and clings to surfaces to form ghostly silhouettes. It is said the Inuit have 50 different words for snow, yet even they can be left speechless, as snow is one of the most complex natural materials in existence. This thesis presents a new model of snow accumulation for computer graphics.  We are primarily concerned with creating and simulating fallen snow (not falling snow - an important distinction), with our ultimate goal to produce view-independent, static, 3D snow surface models that can be used in artistic and scientific visualisation, film, and advertising. Our contribution is divided into two major components: snow placement and snow stability. Each are essential for modelling the appearance of a thick layer of snowfall on the ground.   Snow placement requires us to determine how much snow falls upon the scene, and where it accumu-lates. We simulate this with an adaptive particle/surface hybrid system that allows for such phenomena as flake flutter, flake dusting and wind-blown snow. We compute snow accumulation by shooting par-ticles upwards towards the sky, giving each source surface independent control over its own sampling density, accuracy and computation time. Importance ordering minimises sampling effort while max-imising visual information, generating smoothly improving global results that can be interrupted at any point. Once snow lands on the ground, our stability model moves material away from physically unstable areas in a series of small, simultaneous avalanches. We use a simple local stability test that handles very steep surfaces, obstacles, edges, and snow transit due to wind. Our stability algorithm is flexible enough to simulate other materials, such as flour, sand, and flowing water. We show physical plausibility by comparing various aspects of our approach with real snow images. As proof that our algorithm is flexible and usable, we provide several examples of snow on complex models containing hundreds of thousands of polygons. The completed 3D snow surface model can be easily imported into commercial modelling and rendering software, allowing users to convert existing animations to a brand new season.
Patent CA-2316138-A1 (CA)
Inventor: CSULITS FRANK M
IPC: G07D7/00
Filed: 1995-03-08
Abstract: A currency evaluating device for receiving a stack of currency bills, rapidly discriminating the bills in the stack, and then re-stacking the bills. The device includes an input receptacle adapted to receive the stack of currency bills to be discriminated, and a transport mechanism adapted to transport the bills in the direction of a narrow dimension of the bills, one at a time, from the input receptacle to a plurality of output receptacles, at a rate in excess of about 800 bills per minute. A discriminating unit is adapted to determine the denomination of each of the bills at a rate in excess of about 800 bills per minute; the discriminating unit including a detector positioned along a transport mechanism path between the input receptacle and one of the plurality of output receptacles adapted to receive and re-stack the bills after being discriminated by the discriminating unit. A method of evaluating currency bills of different denominations using a currency evaluation device comprises receiving a stack of bills to be evaluated in an input receptacle of the evaluation device; transporting, under control of the evaluation device at a rate in excess of about 800 bills per minute, the bills along a transport mechanism in the direction of a narrow dimension of the bills, one at a time, from the input receptacle to a plurality of output receptacles; and determining the denomination of the bills under control of the evaluation device using a denomination-discriminating unit at a rate in excess of about 800 bills per minute, the discriminating unit including a detector positioned along a transport mechanism path between the input receptacle and one of the plurality of output receptacles adapted to receive and re-stack the bills after being discriminated by the discriminating unit.
Patent CA-2318605-A1 (CA)
Inventor: SVENSSON ANDERS
IPC: B23D61/18
Filed: 1999-01-19
Abstract: A saw wire according to the invention has two parallel wire strings having a number of saw elements evenly distributed along the wire strings. A saw element comprises a platform (1) and a cutting plate (2). The platform (1) has both two grooves or cut-outs (5, 6) intended to receive two parallel wire strings (3, 4) and a groove (8) which is open towards the bottom to receive driving wheel and pulley.
Patent CA-2318944-A1 (CA)
Inventor: O'BRIEN PATRICK
IPC: H02J3/32
Filed: 1998-12-21
Abstract: A microturbine power generating system includes an electrical generator and a turbine having a fixed inlet nozzle geometry. Maximum thermodynamic efficiency of the microturbine power generating system is achieved by maintaining the turbine inlet at or near maximum temperature. When power demanded of the system is constant, power is supplied by the electrical generator. When an increase in power is demanded, the entire demand is supplied by a battery or other external storage until the electrical generator can satisfy the increased power demand.
Patent CA-2321551-A1 (CA)
Title: Improved thermally stable flame retardant polyamides
Inventor: KOSHIDA REIKO
IPC: C08K3/00
Filed: 1999-03-18
Abstract: Certain polyamide molding compositions are disclosed having improved flame resistance and heat stability. These compositions comprise in weight percent, 20-78 % polyamide having a melting point of 280-340 ~C; 10-60 % inorganic filler; 10-35 % flame retardant (brominated or chlorinated); 1-10 % antimony compound; 1-10 % of one or more oxides, hydroxides, or salts of weak mineral acids, and combinations thereof; and 0-2 % heat stabilizer.
Patent CA-2321876-A1 (CA)
Inventor: LAGRANGE ALAIN
IPC: A61K8/49
Filed: 1999-12-22
Abstract: The present invention relates to the use, for dyeing keratin fibres, of at least one heterocyclic cationic amine and of at least one compound chosen from an aldehyde, a ketone, a quinone and a diiminoisoindoline or 3-aminoisoindolone derivative, in order to obtain, by reaction without an oxidizing agent, a coloration of the said keratin fibres. The invention also relates to dye compositions comprising these compounds and to dyeing agents for using them.
Patent CA-2325580-A1 (CA)
Inventor: SHIGEMATSU MASAYUKI
IPC: H04B10/294
Filed: 1999-03-24
Abstract: The present invention relates to a WDM transmission system and the like suitable for optical communications between local stations having a relatively short repeater interval. In particular, the WDM transmission repeater employed in the WDM transmission system demultiplexes a plurality of signal lights propagating through a transmission line into first and second groups, takes out the second group, comprises a multiplexer for sending into the transmission line a new WDM signal group in which the first group thus demultiplexed and a third group of signal lights different from those of the first group are multiplexed, and has a special structure for reducing the influence of the not-demultiplexed crosstalk components within the second group upon the optical communications.
Patent CA-2329127-A1 (CA)
Inventor: CHENG LOUIS CHI HOI
IPC: H02H3/02
Filed: 2000-03-17
Abstract: L'invention concerne un filtre simulé qui peut être mis en oeuvre dans des circuits analogiques ou numériques et qui élimine le décalage en continu ou d'autres bruits d'un signal d'entrée en utilisant une pseudo-technique de différenciation. Le signal d'entrée est ajusté par une valeur de retour, lequel signal est amplifié par un facteur de gain proportionnel de façon à générer un signal de sortie. La valeur de retour est déterminée par l'intégration du signal de sortie et par la multiplication de l'intégration par un facteur de gain d'intégration. Le filtre simulé permet d'éviter la création de fausses pointes de signal.
Patent CA-2330129-A1 (CA)
Inventor: HOGAN BILLY
IPC: H04Q7/38
Filed: 1999-04-27
Abstract: Radiocommunications systems having improved soft handoff capabilities are described. During soft handoff a mobile station may have several transmission sources (active set members) supplying it with substantially the same information. Mobile stations which are not moving may not require as many sources to provide adequate received signal quality. Therefore, mobile stations which are not moving are identified using locating techniques and members of the active set are compared with a higher threshold to remove weaker branches more rapidly than when using a threshold that is applied to mobile stations that are in motion.
Patent CA-2331644-A1 (CA)
Title: Procede d'utilisation de signaux dielecytrometriques utilisant des grilles d'estimation
Inventor: GOLDFINE NEIL J
IPC: G01N27/02
Filed: 1999-05-12
Abstract: L'invention concerne un procédé permettant de traiter, d'optimiser, de calibrer et d'afficher des signaux diélectrométriques mesurés. Un dispositif d'estimation de propriétés est couplé à l'aide d'instruments à une structure d'électrode, et convertit les réponses électromagnétiques captées sous forme d'estimations d'une ou plusieurs propriétés présélectionnées ou de dimensions du matériau, telle que la permittivité diélectrique et la conductivité ohmique, l'épaisseur de couche ou d'autres propriétés physiques qui affectent les propriétés diélectriques, ou la présence d'autres objets métalliques ou diélectriques à pertes. L'invention concerne également un capteur diélectrométrique pouvant être connecté de différentes manières, de façon à obtenir différentes profondeurs de pénétration des champs diélectriques efficaces, toutes les configurations ayant les mêmes entrefer, espace fluidique et hauteur de séparation d'épaisseur, ce qui améliore grandement la performance des dispositifs d'estimation de propriétés, en réduisant le nombre d'inconnues. La géométrie du capteur consiste en une structure dotée d'un élément de captage unique, qui produit plusieurs longueurs d'onde dans le même encombrement de capteur.
Patent CA-2331918-A1 (CA)
Title: Protection des neurones contre l'ischemie
Inventor: CHANDRASEKARAN KRISH
IPC: A61P9/10
Filed: 1999-06-10
Abstract: L'invention concerne un extrait de ginko biloba, comprenant un bilobalide utilisé pour protéger les neurones contre les agressions ischémiques, et pour stimuler une expression génique mitochondriale.
Patent CA-2332377-A1 (CA)
Title: Tensioner with second pivot-arm for damping mechanism
Inventor: BRAL SERGE ALAIN
IPC: F16H7/12
Filed: 1999-06-02
Abstract: A tensioner with a base (30), a pivot-arm (32) that oscillates about a pivot (34) secured to the base (30), a pulley (22) attached to the pivot-arm (32), a compression spring (36) with a first end (38) operatively connected to the pivot-arm (32) and a second end (50) operatively connected to a shoe (52) that presses a convex surface (54) of the shoe (52) against a concave arcuate surface (46) of the pivot-arm (32), and a second pivot-arm (60) secured to the shoe (52) and a second pivot (66) secured to the base (30).
Patent CA-2333105-A1 (CA)
Title: Fault data synchronization via peer-to-peer communications network
Inventor: DOUGHERTY JOHN JAMES
IPC: H02H1/00
Filed: 2000-03-23
Abstract: A system and method for synchronizing power system data gathered in response  to unscheduled power system events such as faults. A plurality of protective  devices communicate over a peer-to-peer communication network, and when a first device detects the occurrence of a power system event, the device records cycles of power system data before, after, or surrounding the power system event. The first device informs remote devices via the network of the  event and a time tag associated with the event, and the remote devices recor d synchronized power system data.
Patent CA-2333944-A1 (CA)
Title: Method and system for mounting rigging equipment
Inventor: TEGLAND SKYLER M
IPC: F21V21/28
Filed: 2001-02-01
Abstract: A mounting device for motion picture production equipment. The mounting device includes a substantially planar base, a mounting terminus having a longitudinal axis and means for securing the mounting terminus to the base. The mounting terminus is rotatable with respect to the planar base so that the angle established between the longitudinal axis and planar base is variable.